May 15, 1914. THE COLLIERY GUARDIAN. 1091 THE ISC A FOUNDRY COMPANY LTD., RAILWAY PLANT & GENERAL ENGINEERS, Switches, Crossings, Turntables, Water Cranes, Girders, Bridges, Roofs, Pipes, Pumps, Wagons, Tanks, Engines, Boilers, Cranes. Works: NEWPORT, MON. London Office : 16&17 Devonshire Sq. Bishopscate St., E.C. Mining BOOKS At Tremendous Reductions ! New Books at 25 per cent. Discount! Bjoks on Mining, Technical and all other Sub- jects. Sent on Approval. State "Wants. Send for Lists. Books Purchased. W. & G. FOYLE, 121-123, Charing Cross Road. London, W.C. Telephones—6911, 6912 and 6913. Telegrams— Queen’s Hotel, Manchester. QUEEN’S HOTEL, PICCADILLY, MANCHESTER. This first-class Hotel holds the record for Public and Private catering. Choice Wines, Havana Cigars, Ac. MODERNISED & REFURNISHED THROUGHOUT. HANDSOME NEW LOUNGE. Table d’hote Lunch. 1 to 3. Table d’hote Dinners 6 to 8. Served at separate tables. Write for Tariff of Charges to— GEORGE HILLMER, MANAGER. Noted for Turtle Soup. British Manufacture. Boot Quality at Lowest Prices. Every description either separate or In cases. JSQIA& 11 in. GAELStnOARn FRQVRACVOR, rending to 1°, at 2«. postage ILLUSTRATED CATALOGUE ON APPLICATION. fN UARI IMP Mathematical Drawing and .Surveying ■ al* CEraBianafl ixM j Instrument Manufacturer, 47, Finsbury Pavement, LONDON, E.C. Established 1851, Factory—HACKNEY, E. British Insulated & Helsby Cables Id., ELECTRICAL CABLE MAKERS & ENGINEERS. REGD.> TRADE MARK. Works: Prescot, Helsby & Liverpool. SEE LARGE ADVERTISEMENT EVERY FOURTH WEEK. WHY NOT USE THE MOST RELIABLE MATERIAL For your Air, Water, &c., Mains ? — ESPECIALLY AS IT IS ALSO THE MOST ECONOMICAL! —. Mannesmann Tubes (Spigot & Faucet, Flanged, &c.) are SOLID DRAWN. Illustrated Booklets fbom— THE BRITISH MANNESMANN TUBE CO. LTD., Salisbury House, London Wall, LONDON, E.C. WORKS: LANDORE, SOUTH WALES. BRANCH OFFICES and AGENCIES at BIRMINGHAM, MANCHESTER, NEWCASTLE-ON-TYNE, BELFAST, CARDIFF, GLASGOW, MIDDLESBROUGH & NEWPORT (MON.). PUMPS FOR DIF WORKINGS IN COLLIERIES, MINES,- &c. Lift 25 ft. Force 60 ft. and more. Worked by the handle being pished TO and FRO. WILLCOX SEMI-ROTARY WING PUMPS. . i in. to 4 in. ,000 Stocked in IRON, also BRASS. EASY ACTION. SPLENDID RESULTS. W. H. WILLCOX & GO. LTD. Large Sizes 2‘t in. to 4 in. bore have double handles for two or snore mes also for QUARRIES. and great CAPACITIES, which amount to over 8,000 gallons per hour. They are EASILY FIXED, and we mount them in various ways for hand and power. We have excellent testimonials and receive large orders for these Pumps from MINE MANAGERS, &c., on account of their Fitted also for POWER. EXCELLENCE IN WORKING 32/38, Southwark Street, LONDON, S.J Semet-Solvay Coke Ovens SECTION OF OVEN SHOWING SOLID CONSTRUCTION. Strongest in Design. Separate sets of flues to each oven. Very low Maintenance Cost. “DIRECT” AMMONIA RECOVERY PLANT, giving increased yield of Sulphate, with less Labour, and a saving in Steam consumption. THE COKE OVEN CONSTRUCTION CO. L! Howard Chambers, 155 Norfolk Street, SHEFFIELD.